DOI QR코드

DOI QR Code

Applicability of Composite Polyurea Method Considering the Required Performance in Underground Parking Lot Upper Slab

공동주택 지하주차장 상부슬래브의 요구성능을 고려한 복합형 폴리우레아 공법의 적용성 검토

  • Lee, Jung-Hun (BK Institute of Waterproofing & Anticorrosion Tech Corp) ;
  • Choi, Eun-Kyu (BK Institute of Waterproofing & Anticorrosion Tech Corp) ;
  • Song, Je-Young (BK Institute of Waterproofing & Anticorrosion Tech Corp) ;
  • Kim, Soo-Yeon (Architectural Engineering, Seoul National University of Science and Technology) ;
  • Oh, Sang-Keun (Architectural Engineering, Seoul National University of Science and Technology)
  • Received : 2019.08.23
  • Accepted : 2019.09.20
  • Published : 2019.09.30

Abstract

In this study, problems of the waterproofing methods in which water leakage occurs in the upper slab of the underground parking lot of apartment houses and the requirements considering the characteristics of the upper slab, and selected the appropriate performance(proposal) for the composite polyurea process are reviewed. As a result of the study, it is necessary to review performance such as responsiveness to upper slab of the multi-unit underground parking lot that is comprised of (1) crack and behavior responsiveness, (2) surface integrity, (3) vertical watertight stability, (4) pressure layer construction, (5) impact and pressure response and (6) vehicle moving load. As a result of evaluating 5 items corresponding to the requirements for the soft and hard complex polyurea, all of them were found to meet the conditions, and each materials were improved by compounding the materials that had problems when applying a single-ply method, thereby clarifying the advantages and disadvantages of the material property. However, in order to apply to the actual site, additional evaluation on site applicability such as mock-up evaluation should be conducted, and subsequent studies on the applicability of the market through review of economic feasibility and maintenance is required.

본 연구에서는 지금까지 공동주택 지하주차장 상부 슬래브에 적용하여 누수하자가 발생된 방수공법들의 문제점과 상부 슬래브의 특성을 고려한 요구조건을 검토하고, 이에 적합한 성능(안)을 선정하여 복합형 폴리우레아 공법을 대상으로 그 적합성 여부를 판단하고자 하였다. 검토결과, 공동주택 지하주차장 상부슬래브에는 (1) 균열 및 거동 대응성, (2) 바탕면 일체성, (3) 수직부 수밀 안정성, (4) 누름층 시공 용이성, (5) 충격 및 누름 대응성, (6) 차량 이동하중에 대한 대응성 등의 성능검토가 필요하겠다. 연질, 경질의 복합형 폴리우레아를 대상으로 요구조건에 해당하는 5가지 항목에 대한 평가를 진행한 결과 모두 조건에 부합하는 것으로 확인되었으며, 단일 공법으로 적용함에 있어 문제점이 있던 재료들을 복합화 함으로서 각 재료의 장단점을 보완하여 효과적으로 적용할 수 있음을 확인하였다. 단, 실제 현장에 적용하기 위해서는 향후 Mock-up 평가 등 현장 적용성에 대한 추가적인 평가가 이루어져야 할 것이며, 복합화에 따른 경제성 및 유지관리성 측면에서의 검토를 통해 실제 시장 적용성 여부에 대한 후속적인 연구가 필요하겠다.

Keywords

References

  1. Choi, I.H., Lee, J.H., Kim, Y.R., Kim, U.J. (2011). "An experimental study on the improvement for quality of waterproofing method for underground parking lot," Annual Conference Journal of the Architectural Institute of Korea, 31(1), 119-120.
  2. Choi, S.M., Kim, M.J., Jang, S.M., Jang, D.B., Oh, S.K. (2014). "Consideration for the necessity of the exterior waterproofing on the below grade parking lot of the apartment house," Annual Conference Journal of Korean Institute of Architectural Sustainable Environment and Building Systems, 222-223.
  3. Eom, D.J., Oh, M.H., Kwon, S.W., Kwak, K.S., Oh, S.K. (2004). "Performance test method on the influence waterproofing as resist behavior of concrete structure crack," Annual Conference Journal of the Architectural Institute of Korea, 24(2), 475-478.
  4. Eom, T.H., Kim, Y.S., Shin, H.C., Kim, Y.G. (2015). "A study on the quality standard and basic physical properties for underground structure outer side waterproofing, developmental direction for synthetic polymer seal waterproofing materials for the underground exterior wall," Annual Conference Journal of Korea Recycled Construction Resource Institute, 15(1), 367-370.
  5. Ishmael, W.E. (2004). "The application of aliphatic polyurea waterproofing on the disney world baseball stadium," Polyurea Development Association Annual Conference, 2004, 12.
  6. Kim, Y.S., Um, T.H., Kim, Y.S., Shin, H.C., Kim, Y.G., Choi, S.K. (2016). Basic experiment to improve the quality of asphalt seal waterproofing material, Journal of Korean Recycled Construction Resources Institute, 297-298.
  7. Ko, S.U., Kim, K.H., Kim, Y.S., Shin, H.C., Kim, J.M. (2018). Experiments on flow characteristics of asphalt seal composite waterproofing method for underground concrete structure exterior wall waterproofing, Journal of the Korean Recycled Construction Resources Institute, 6(4), 297-303. https://doi.org/10.14190/JRCR.2018.6.4.297
  8. KS F 3211. (2015). Waterproofing Membrane Coating for Construction, Korean Industrial Standards, Korea.
  9. KS F 4922. (2017). Polyurea Resin Waterproofing Membrane Coating, Korean Industrial Standards, Korea.
  10. Lee, J.H., Song, J.Y., Oh, S.K. (2016). Leakage situation and main leakage areas of domestic residential building underground parking lots, Journal of the Korean Recycled Construction Resources Institute, 4(4), 496-503. https://doi.org/10.14190/JRCR.2016.4.4.496
  11. Oh, S.K., Kim, S.Y., Lee, S.I. (2002). A study on waterproofing performance evaluation of polyurea resin waterproofing membrane coating of velocity per second hardening, Journal of the Korea Institute of Building Construction, 2(1), 131-138. https://doi.org/10.5345/JKIC.2002.2.1.131
  12. Oh, S.K., Kwak, K.S., Choi, S.M., Kwon, S.W. (2007). Improvement of selection system of waterproofing methods for concrete structure, Journal of the Korea Institute of Building Construction, 7(1), 99-106.
  13. Song, J.Y., Oh, K.Y., Kim, B.I., Oh, S.K. (2017). Performance evaluation of waterproofing membrane systems subject to the concrete joint load behavior of below-grade concrete structures, Applied Sciences, 7(11), 1147. https://doi.org/10.3390/app7111147